<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>双向数据绑定</title>
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
</head>
<body>
<div id="app">
    <p>{{ message }}</p>
    <input v-model="message">
</div>
	
<script>
new Vue({
  el: '#app',
  data: {
    message: 'Runoob!'
  }
})
</script>
</body>
</html>